Step CLI

step is an easy-to-use CLI tool for building, operating, and automating Public Key Infrastructure (PKI) systems and workflows. It's the client counterpart to the step-ca online Certificate Authority (CA). You can use it for many common crypto and X.509 operations—either independently, or with an online CA.

Questions? Ask us on GitHub Discussions or Discord.

Website | Documentation | Installation | Basic Crypto Operations | Contributor's Guide

Features

Step CLI's command groups illustrate its wide-ranging uses:

step certificate: Work with X.509 (TLS/HTTPS) certificates.
- Create, revoke, validate, lint, and bundle X.509 certificates.
- Install (and remove) X.509 certificates into your system's (and browser's) trust store.
- Validate certificate deployment and renewal status for automation
- Create key pairs (RSA, ECDSA, EdDSA) and certificate signing requests (CSRs)
- Sign CSRs
- Create RFC5280 and CA/Browser Forum-compliant certificates that work for TLS and HTTPS
- Create CA certificates (root and intermediate signing certificates)
- Create self-signed & CA-signed certificates
- Inspect and lint certificates on disk or in use by a remote server
- Install root certificates so your CA is trusted by default (issue development certificates that work in browsers)
step ca: Administer and use a step-ca server, or any ACMEv2 (RFC8555) compliant CA server. ACME is the protocol used by Let's Encrypt to automate the issuance of HTTPS certificates.
- Initialize an X.509 and/or SSH CA in one command
- Authenticate and obtain a certificate using any enrollment mechanism supported by step-ca
- Securely distribute root certificates and bootstrap PKI relying parties
- Renew and revoke certificates issued by step-ca
- Submit CSRs to be signed by step-ca
- With an ACME CA, step supports the http-01 challenge type
step crypto: A general-purpose crypto toolkit
step oauth: Add an OAuth 2.0 single sign-on flow to any CLI application.
- Supports OAuth authorization code, out-of-band (OOB), JWT bearer, and refresh token flows
- Get OAuth access tokens and OIDC identity tokens at the command line from any provider.
- Verify OIDC identity tokens (step crypto jwt verify)
step ssh: Create and manage SSH certificates (requires an online or offline step-ca instance)
- Generate SSH user and host key pairs and short-lived certificates
- Add and remove certificates to the SSH agent
- Inspect SSH certificates
- Login and use single sign-on SSH

Installation

See our installation docs here.

Example

Here's a quick example, combining step oauth and step crypto to get and verify the signature of a Google OAuth OIDC token:

Community

Connect with step users on GitHub Discussions or Discord
Open an issue and tell us what features you'd like to see
Contribute to the step codebase
Follow Smallstep on Twitter

Further Reading

Full documentation for step
We have more examples of step and step-ca in action on the Smallstep blog.
If you're new to PKI and X.509 certificates, or you want a refresher on the core concepts, you may enjoy Everything PKI.

License

virtualdxs/step-cli

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